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Recognised as Colour

#63447D

  • #63447D
  • Violet
  • Dark
  • Nearest: Dark slateblue

#63447D is a violet with RGB values 99, 68, 125 and HSL 273°, 30%, 38%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#63447D#63447D
HEX#63447D
RGBrgb(99, 68, 125)
RGB (0–1)0.3882, 0.2667, 0.4902
RGB percentages38.8%, 26.7%, 49%
HSLhsl(272.6, 29.5%, 37.8%)
HSV / HSBhsv(272.6, 45.6%, 49%)
CMYK20.8%, 45.6%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,505,597
CSS custom property--colour: #63447D;

Brightness & contrast

Relative luminance0.08268WCAG 2.x, 0 is black and 1 is white
Perceived brightness86.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.91:1
Contrast with white7.91:1WCAG normal text: AAA
Contrast with black2.65:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#9CBB82

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#37507Fno red cones; affects about 1% of men; ΔE 19.9 from the original
Deuteranopia#3E527Bno green cones; the most common form, about 1% of men; ΔE 20.7 from the original
Tritanopia#5F4D5Ano blue cones; rare, and affects men and women equally; ΔE 27.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.91:1WCAG large text: AAA
Contrast with black, large text2.65:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.2Rebecca purple · ΔE 26.6Midnight blue · ΔE 29.8Medium purple · ΔE 32.7Slate blue · ΔE 34.1Steel blue · ΔE 34.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.22, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5E7D44
Analogous#47447D, #7D447A
Triadic#7D6344, #447D63
Split complementary#7A7D44, #447D47
Tetradic#7D4744, #5E7D44, #447A7D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C8B6D7
Lighter +30%#AF95C5
Lighter +20%#9674B3
Lighter +10%#7D569E
Darker −10%#49325C
Darker −20%#2F203B
Darker −30%#150E1A
Darker −40%#000000
More saturated +25%#652C95
Less saturated −25%#615C65

Channel breakdown

R99
G68
B125
Red99 (38.8%)
Green68 (26.7%)
Blue125 (49%)
Hue272.63°
Saturation (HSL)29.53%
Lightness37.84%
Dominant channelBlue
Hex per channelR 63 · G 44 · B 7D

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Every value on this page was computed from “63447d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.